25. Glass paper is used on wood to
A. fill the pores
B. produce a smooth surface
C. form beautiful grains
D. reduce the thickness

26. Which of the following is not a safety measure when using electrical appliances?
A. Read all warning and instructions on the appliance before use
B. Do not touch electrical appliance with wet hands
C. Do not plug in too many appliances on a socket at a time
D. Leave all appliances on after use.

27. Which of the following is the correct order of applying a finish to a block wall?
I. Plastering
II. Painting
III. Scraping